Torrid conditions are expected in San Diego County today, especially in the desert areas, where an excessive heat warning is scheduled to take effect this afternoon.
The National Weather Service scheduled the warning from noon today to 8 p.m. Friday, advising daytime highs in the desert areas will range between 112 and 118 degrees.
"The combination of hot days and warm nights will make it difficult for those without air conditioning to keep cool,'' a NWS advisory read.
"Excessive heat can be stressful on humans and animals without proper precautions. Avoid strenuous outdoor activity during the hottest parts of the day.''
Elsewhere in the county, temperatures will soar up to 15 degrees above normal for this time of year, the Weather Service said. It said there's a slight chance of afternoon thunderstorms over the mountains and upper deserts today.
